1: Perk up, as an appetite
9: 'Star Trek II: The Wrath of ___'
13: 'If I Were a ___ Man'
15: Guardian of underground treasures
16: Emulate a couch potato
17: Takes an evening course?
22: Admire, and then some
23: Theyre often out on a limb
31: The Sail (southern constellation)
40: Scrooge's exclamation
42: One going downhill fast
43: What a choir stands on, often
47: Masher's comeuppance, maybe
48: Element used in alloys
64: Coin of Nepal or Pakistan
65: Golden Rule preposition
68: Flippered fish fancier
71: Chemical group derived from benzene